You can use identity mapping properties to normalize user identities. Once you set up
identity mapping, NiFi treats identities authenticated by different identity providers
(certificates, LDAP, Kerberos) the same. This allows you to avoid creating duplicate users.
Additionally, you only need to set up user-specific configurations such as authorizations once
per user.

Steps

From the NiFi service Configs tab, click Advanced
nifi-properties.

Use the Filter box to search for
nifi.security.identity.mapping.pattern.